Cob breaker or crusher.



No. 842,681. PATENTED JAN. 29, 1907.

G. H. MAYNB.'

COB BREAKER 0R GRUSHBR@ APPLITION FILED IAB. 19, 1904.

7 SHEETS-SHEET 1. s

(g4 i I .I @Ronny No. 842,681. PATENTED JAN. 29, 1907.

G. H. MAYNE.

GOB BREAKER 0R GRUSHER. APPLIOATION FILED M1149, 1904,

'1 SHEETS-snm? z. I

Gew/gel Magne,

PATBNTBD JAN. 29, 1907.

@.111 MAYNB. 00B BRBAKERUR cRUsHBR.

APPLIGATION FILEDIAB. 19. 1904.

7 SHEETS-SHEET 3.

@savante/a G12/vi hmmm 'PATENTE'D JAN. 29, 19o?.

G. H. MAYNE. COB BREKER 0R GRUSHER.

APPLICATION FILED MAR. 19, 1904.

"I SHEETS-SHEET 5.

G. H. MAYNE.

GOB B'REAKER 0R GRUSHER.

APPLICATION FILED MAB. 1o. 1904.

PATBNTED JAN. 29, 1907.

7 SHEETS-SHEET 6.

Je ZJ No. 842,681. PATENTED JAN. 29, 1907.

G. H. MAYNE.

GOB BREAKER 0R GRUSHER.

APPLICATION FILED MAR. 19, 1904.

'I SHEETS-SHEET 7.

V'UNITED sTATEs PATENT OEEIOE.`

GEORGE H. MAYNE, OF SPRINGFIELD, OHIO, AssIGNOR To THE roos MANUFACTURING OOMPANnoF SPRINGFIELD, OIIIO, A OORPLORA-- TION OF OHIO.

coB BREAKER 0B ORUSHER.

Specification of Letters Patent.

Patented Jans. 29, 1907.

Application .filed March 19, 194. Serial No. 198,941.

To all whoml it may concern: v

Be it known that I, GEORGE H. MAYNE, a. citizen of the United States, residin at Springfield, in the countyof Clark and tate of Ohio, have invented certain new and useful Improvements in Cob Breakers or Crushers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to cob breakers or crushers or, in other words, to a structure designed, primarily, for breaking or crushing corncobs or ear-corn, although it is of course adapted to operate upon other materials.

The invention has for its object to provide a structure of this character which shall be of high eiciency and capacity, readily assembled and renewable as to worn or broken parts, and at the same time simple and com-l,

pact in its construction.

To these ends my invention consists in certain novel features, which I will now proceed to describe and will then particularly' point out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a structure embodying my invention in one form. Fig. 2 lis an end elevation inl vertical section on the line a: of Fig. 1 and looking in the direction of the arrows. Fig. 3 is a view of the gearing and driving-pulley, being a view in section upon the same line of Fig. 1, butr viewed in the opposite direction'from Fig. 2. Fig. 4 is an other crushing-roll.

elevation of the discharge end of thema-A chine. Fig.` 5 is a plan view of the crushingrolls and their gearlng removed from the casing. Fig. 6 is a face view of one of the disks or elements of one of the crushing-rolls. Fig. 7 is an edge view thereof. Fig. 8 is a sectionalview of the same. Fig. .9 is aface view of one of the disks or elements of the Fig. 10 is a detail view thereof. Fig. 11 is a sectional view through the rolls and casing, taken on the line y ly ofl Fig. 1 and looking in the direction of the arrows. Fig. 12 is an endl elevation of one of the staves of which the casinguis composed. Fig. 13 is a partial development of the work `ing face of the stave shownin Fig. 12, the same showing what would be seen iniy a lan view of a part'of Fig. 12 of the-full width thereof, but only a portion of its length if the l'curved surfaces thereof wereV flattened out into plane surfaces. Fig. 14 is a vertical sectional view taken on the`line z z of Fig; 1 and looking in the direction of the arrows. Fig. 15 is a'.vertical sectional view .of the hopper and the parts carried thereby, taken onv the line w w of Fig.,14 and looking in the direc.- tion of the arrows. .Fig 16 isan end view of the support for the end of the roller-shaft bearing the driving-pulley, and Fig. 17 is a front elevation of the same. l

Broadly considered, my improved crusher comprises a casingk arranged horizontally, into which casing the material tobeoperated upon is fed from above atone end of said casing, the 'other' en ofl ,the casing, and two parallel crushing-rolls located within the casing revolving in opposite directions at differential speeds, coperating with the casing and with eachother to effect the breaking orcrushing of the material, and also serving to feed. the material from the receiving to the discharge end thereof.

tion disclosed in the accompanying drawings is that which I .preferL and which I will now proceed to describe. In the said drawings the machine is shown as supported upon two end frames or legs 1 and 2, suitably connected and braced a art at their lower ends and connected toget er at their vupper ends by the casing 3, which theysupport. The legs are provided with bearings 4. for the rollshafts, and the casing 3V is provided with terminal flan es 5, by meansof which it is connected wit the'end frames by bolts 6. The casing is divided longitudinally into lsiX staves or sections, one plane of division being horizontal 'and passing centrally through bothrolls, the other two divisional planes be ing vertical and passing, respectively, throu h the central lines ofthe two rolls. Thus t e body of the casing comprises an upper stave 7, a lower stave 8, two outer staves 9 and 10 to complete the houslng ofone ofthe rolls, and two similar outer staves 11 -andf12 to complete the housing of the other roll. It will be noted that the upper and lower staves extend partially around both rolls, each of said-staves carrying a portion. of the surface Jof the casing cooperating with both rolls. The several stave-s ctions are provided with longitudinal radial ianges 13 through which The `particular embodiment of my inven roduct ybeing discharged at the 65 nor to the adjacent'end frame connecting-bolts 14 pass to unite the several sections o the casing, The body ofthe casing thus forms two parallel cylindricalchambers practically circular in cross-section, but mer into each other along one side,

longltudinal opening thus formed the two rolls .to coperate with eac well as with the inner walls of'the casing.

The inner walls of the casing are provided with -longitudinal ribs 15, spaced apart circumferentially a dist ance considerably greater than their height, as indicated more particularly in Figs.A 11 and 14. These ribs are preferably not continuous'irom end to end of the ermitting the omissions occurring alternately in the ads vjacent roll-chambers, as shown in Fig.. 13, which shows a development or projection of a portion of the ribs of one ofthe staves. This construction prevents the material from' passing. from one end of' the casing to the other in the space between two ribs and permits itto pass around the casing as it moves -from end to end thereof, thus subjecting it more lfully' to the action of the crushing-rolls.

In order to permit the introduction of the material into the casing, an opening is formed in the top of thecasing at one end thereof. This ispreferably effected by making the top stave 7 of less length than the remaining staves, said top stave extending only from the end frame 2 to the hopper 16, which surrounds the inlet-opening ot' the casing. The sha e in cross-section ot' the staves 9 and 11 is a so somewhat modified at the receivingopening, said staves having their bodies extended upward, as indicated at 17 in'Fig. 14,' and rovided with horizontal iianges 18, on whic rest corresponding flanges 19, formed on the base ofthe hopper, bolts serving to secure .the hopper 1n position 'by passing` through said flanges 18` and 19. The end ot the stave 7 adjacent tothe receiving-opening is beveled or inclined, as indicated at 21 in'.

Fig. 14' and as shown in dotted lines in Fig. l, so as to prevent clogging at the entrance of Y the body of the casing.

1n order to prevent injury to the casing or -rollsfby means of any hard body which may 5e be accidentally introduced into the machine, provision is made for the discharge 'of such body before it enters the inain portion of the machine.-v To this. end the bottom stave A8 instead of being a single piece extending the entire length of the machine is made in two sections, themain section (indicated by the numeral 8) extending from the discharge end o -the machine to a point below the hopper and being secured in position by thev bolts 14 6c andl 6 in the manner already described. The other section (indicated bythe reference-nulmeral 8a) is coextensive in length with the receiving-opening of the casing, under which d it lies, :and is not bolted to the adjacent staves It fits bethe other, as`

' At its ydischar casing; but portions .of said ribs are omitted,

tween these parts, however, and is held in position bymeans of a break-bar 22, on which' rests a lug or projection 23 from the stavesection 8a. ,1`he' break-bar is held in'position below the casing in any suitable manner-as,

for instance, by means of bolts 24 passing up through the ends of the break-bar and also through slotted lu s 2 5 on 1the staves lOand 12, on top of whic lugs the'bolt-headsrest. e 'end the casing 3 communicates with a-c amber 26, below which is located a discharge-spout 27 theseparts being supported'b'y and preferably formed in one piece with-the end frame 2.

In order to facilitate inspection of the inl tei'icr of the casing", the upper and lower ertions thereof are made separable, the p ane of divisionbein'g'th horizontal plane passing threugh the axes cf the two crushing-rolls;

.To this end the staves 9 and 10 at ene'side of the machine are hinged tcgether, the staves 9 being provided near each end with a pair of lugs 27 and the stave 10 being similarly previded with a lug '28, which fits-between lugs 27,.a pivot-bolt 29 passing thrcughall three of the lugs. By removing the bolts 6,*connecting the three top staves 7, 9, and'll to the end frames, and also'the bolts 14, connecting the staves 9 and 11 to the `stavesf10.

and 12,v theentire upper half of the casing maybe swung over on the pivots 29, thus fully exposing the' interior of the casing and givmgaccessto the rolls; v

Within the-casing- 3 are located thecrushing-rolls, two in number, arranged arallel with each otherin thetwo cylindrica chambers which are formed within. the'casing. These rells are indicated Vas `-a whcle by the.

reference-numerals 30 and 31, respectively.

The'roll- 30 ismounted on fa shaft 32, which shaft is in turn mounted in the bearings 4 and isapr end of the roll and athreaded portion 34 vat the other end cf, the-roll,`clamping and lock nuts 35 and 36 being mounted cn thethreaded portion.'` The bjodyof the roll 30' is com? pcsed' of a pluralitycf disks 37 ,which are mounted on thatportion of Ithe shaft lying between the collar 33 and clampingf-nut35.

,In order to hold said disks non-retatively on the shaft '32 that:` portion of said shaft mounted between said collar andnut is made ovlde'd with'a fixed collar- 33 at one IIO d nen-circular in cross-sectien, havingl prefer- .ably the square in cross-sectienshcwnr fer instance, in Figs.`4 11 and, 14. Each disk is provided with a similarly-shaped aperture 38, and the several disks are slipped upon the shaft 32 betere the nuts 3 5 and 36 are placed in pesitianv on said shaft and are then clamped on said' shaft between Asaid cellar and nuts. Each disk is provided with a plurality cf teeth 39 preferably six in numer, periphery of the disk'. Each tooth is arranged diagonally with respect to the disk and arranged equidistantly arcund ther and in such aposition as to tend to feed the material along toward the discharge end of the machine.

Thedisks are so constructed that the teethof one disk lie between and alternate with the teeth ofthe two disks on opposite sildes thereof, the teeth ofa'ny given disk being alined longitudinally of the roll with the spaces of the two adjacent. disks.

The roll 31 is mounted on aI shaft 40, having a fixed collar 41, a threaded portion 42, clamp ing and lock nuts 43 and 44 on said threaded portion, and a similar square or non-circular portion between said nuts and collar. .The body of the roll 31 is composed c-f disks 45, having non-circular apertures 46 to fit the similarly-shaped part of the shaft 40, and pe`l ripheral teeth 47, preferably corresponding in number and location with those of the disks 37. arranged with respect to each other in the roll 31 in the same way as inthe case of the roll 30. It will beobserved, however, that the teeth 47 have a diagonal or, spiral ar-' rangementl the reverseo of the teeth 39, and said teeth 47`also serve to feed the material toward the dischargefend of the machine, since the two rolls-revolve in opposite direc- The rolls ara driven b -,means of a pulle f 48, mounted on the shafl: 32,. and said sha t 32 is provided with a gear 49, which meshes with a gear 50 .on the shaft 40. I prefer to make the gears 49 and 50 of different sizes,

so as to impart .to the rolls a dierential motion, and in the present 'instance I have shown the gear 49 as larger than the gear 50,

vso that the roll 31 rotatesat a higher rate of -speed than the roll 30.

The shaft 32 is extended some distance beyond its bearing 4 on the end frame 1 in order to receive the pulley 48, and since said pulley is preferably of considerable size, and consequently comparatively heavy, and is alsov subjected to considerable strain from the driving-belt I prefer to ,provide a-support for the extremity of the shaft 32,1 'ng beyond the pulley 48. To this ."end I1 employl a standard 5 1, carrying a hanger or' bracket 52, having upper and lower arms 53 and 54, in which are threaded bearing-plugs 55 and' 56, which adj ustably support a bearingfblock 57, in which the end of the shaft 32 is mounted.

In order to insure roper feeding of the material to be operated upon from the hopper through the receiving-opening of thecasing to the rolls, there is mounted in the receivingmouth 'immediately above the rolls a bar 58. This bar is preferably Anon-circular in cross-section, the form which I prefer to-give it being that shown in which the bar is square in cross-section.- Said bar is adapted to rotate on its own axis, which lies in alvertical plane parallel with the vertical planes of the axeslof the dcrushing-rolls and midway between the same, so that the bar is adapted to The teeth of the alternate disks 45 arey Vlie in the angle between those portions ofthe preferably effected by mounting said bar 1n the manner shown. In'this construction the bar 58 is provided at its ends with trunnions 59, which trunnions rotate in bearings in bearing-plates 60, mounted on the inner faces of the opposite walls of the hopper 16. The adjustment is effected by means yof bolts 61, mounted in the bearing-plates 60 andextending through slots 62 in the hopper-walls, their projecting ends receiving nuts 63, by means of which the'bearing-p'lates may be clamped in position afteradjustment. The bar 58 effectually prevents bridging of the material at the receiving mouth of the casing, as thelmaterial passing downward by or carried under it into engagement with the crushing-rolls will come into contact withy said bar andwill impart to it a movement of rotation which effectually dislodges any material which might otherwise tend to lodge overthe same and form a bridge which would prevent the material from entering the cas. ing. This is particularly the case where the machine is operating upon corncobs or earcorn.

In operation the material to be operated upon is placed in the hopper 16, and motion being imparted to the pulle 48 the crush.- ing-rolls 30 and 31 are rotate in opposite directions, their upper portions moving toward. each other to draw the material down between the rolls, the proper feeding being insured by the bar 58. The crushing is partly accomplished by this initial passage of theh material downward between the rolls and is further carriedout by the passage of the material between the ribs on the interior of the casing and the teeth on the rolls, the material being carried around the two cylindrical chambers Within the Casin in opposite direction, and passing again an again between the rolls vand being constantly fed forward toward the discharge end" of the machine during the crushing operation. stood that the differential speed' ofthe rolls eatly increases the crushing effect obtained gr the passage between said rolls of the material on which the machine is 'operating The employment of two rolls and their coperation with each other and with thecasing within which they are inclosed materially increases the capacity of the machine and effects va uniform and rapid reduction. The provisin below the receiving-mouth of ther separate stave-section 8a, yieldingly sunported by the breakbar 22, prevents break- I t Will be underj age or damage to the machine under ordinary circumstances, since any hard substance of objectionable size `which enters betweenthe rolls and this part of the casing, which is the first part thereof which it would reach,

will cause' the bar 22 to break before any that disk or section or those disksor sec-v tions afl'ected by the injury need to be removed, thus avoiding the necessity ofdiscardiniT the entire roll, and this removal may be readily effected. The same is true of the casing, which being built up of a number of separate staves or sections only requires to be renewed as to the stave or section which may be impaired in case of injury. It will yalso be noted that tlii's sectional construction permits the ready taking apart and assembling of the machine, and permits its separation into relatively small units, which -materially facilitates storage and transportation.

I do not wish to be understood as limiting myself to the precise details of construction hereinbefore described and shown in the accompanying drawings, as the same may obviously be modifiedwithout departing from the principle of my invention.

Having thus fully described my invention, whatI claim'as new, and desire to secure by Letters Patent, is-

1. A crusher or breaker-of the character described, comprising two parallel crushingrolls between which the material passes, each of said rolls being provided with a plurality of circumferential rows of inclined teeth alternately arranged, the inclination of the teeth of the two rolls being opposite and acting to feed forward the material, means for rotating said rolls in opposite directions at di'erential speeds, and a casing inclosing said rolls on all sides and havin its inner'surface provided with longitudina ribs or teeth coperating with those of the rolls, said casing having an inlet orfeed opening at one end only .above said rolls and a dischar eoutlet atA the other end, substantially as escribed.

2. A crusher or described, comprising-.two parallel4 crushingrolls between ,which the material passes, each of said rolls being provided witha plurality-of circumferential rows of -inclined teeth alternately arranged, the inclination lof the teeth of the two rolls being op osite and acting to feed forward the materia means for rotating said rolls in opposite directions at differential speeds, and a casing inclosing said rolls and having its inner surface providedwith longi- I tudinal ribs or teeth cooperating with those of the rolls, said ribs or teeth being interrupted and the interru tions of one rib alternating 'withthe projections. of the adjacent ribs, said casing hating an inlet or feeding open'ng at' one end above said rolls and a discharge-outlet at the other end, substantially as` described.

breaker of the character 3. In a crusher or breaker of the character described, the combination, with two parallel crushing-rolls, of a casing inclosing and coperating with said rolls, said casing being composed of a plurality of separate staves extendingl longitudinally of the casing, the

planes of division being one horizontal andv passing through the axes of both rolls, and

two vertical and assing through the axes of the respective rolls, a portion of the lower stave extending between the vertical planes of division being loosely mounted between the adjacent staves, a breakable bar support- .ing the loosely-mounted portion of said stave, means for separately connecting said staves, an end 4frame separately connected to each of said staves and su porting the casing, andbearings in said ent frame, said casing having an inlet or feed opening at one end above said rolls, and 'a discharge-outlet at the other end, substantially as described.

`4. In a crusher or breaker of the character described, the combination, with two parallel crushing-rolls revolving in opposite directions, of a casing inclosing and coperati'ng with said rolls and having an inlet or feed opening-above said rolls, a hopper surrounding said inlet-opening, and a freely-revoluble bar supported in said inlet-opening beneath said hopper and parallel with and centrally above said-crushing-rolls, substantially as described.

5. In a crusher or breaker of the character described, the combination, with two parallel crushing-rolls revolving in opposite directions, of a casing inclosing and coperating with said rolls and having an inlet or feed opening above said rolls, ahopper surrounding said inlet-opening, and a freely-revoluble bar supported in said inlet-openingibeneath said hopper` and parallel with and vcentrally above said crushing-rolls, said bar being noncircular cross-section, substantially-as described.

6. vIn a crusher or breaker of the character described, the combination, with two parallel crushing-rolls revolving in opposite directions, of acasing inclosing and coperatin'g `with said rolls and having an inlet or feed openingabove -said rolls-,ta hopper surround- .ing said-i1ileto ening, and a freely-revoluble bar supported in said inlet-opening beneath said hopper and parallel with and centrally above said crushing-rolls, said bar'being polygonal in cross-section, substantially as described. Y

7. In a crusher or breaker of the character described, the combination, 'with two parallel crushing-rolls revolving in o posite direcjtions', of a casinginclosingan cooperating withisaid rolls, and Vhaving an inlet orfeed opening above said rolls, a-hopper surrounding said inlet-opening, and a freely-revoluble bar supported in said inlet-o emng parallel with and centrally'above sai 'crushing-rolls,

IOC

tially as described.

said bar being adjustable toward and from the converging surfaces of the rolls, substan- 8. In a crusher or breaker of the character described, the combination, with two paral lel crus g-rolls revolving in opposite directions, of a casing inclosing and cooperating with said rolls and provided with an inlet or feed o the same, a hopper surpening above roundlng said feed-opening, bearing-plates mounted and vertically adjustable on said hopper, and a freely-rotating bar mounted in said bearing-plates and lying parallel with and centrally above the crushing-rolls, substantially as described. v z 9. In a Crusher or breaker of the character described, a pair of parallel crushing-rolls,

each comprising a shaft, a roll-body coinposed of a plurality of ilat disks having their adjacent lateral faces abutting, a series of teeth extending diagonally and in a common direction across the peripheral surfaces of said disks, the teeth of the adjacent disks being arranged out of alineinent and the teeth on the roll being at an angle to the teeth on the other roll and means for securing said disks on the said shaft, substantially as described.

ln testimony whereof I afX my signature l 1n presence of tWo Witnesses.

GEORGE H. MAYNE. Witnesses:

JEROME J. WELTY, IRVINE MILLER. 

